listview和checkbox的冲突的用法

package com.exaple.music;

import java.util.List;
import java.util.Timer;
import java.util.TimerTask;

import com.exaple.vo.Music;

import android.content.Context;
import android.media.MediaPlayer;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;

public class Base extends BaseAdapter {
    List<Music> list;
    Context co;

    private useMetod muse;
    private Timer timer;

    public Base(List<Music> list, Context co) {
        super();
        this.list = list;
        this.co = co;
        /* singletonMusic = Singleton.SingletonMusic(); */
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return list.size();
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return list.get(position);
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return 0;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {

        View view = null;
        final ViewHolder vh;
        if (convertView == null) {
            view = View.inflate(co, R.layout.base, null);
            vh = new ViewHolder();
            vh.text = (TextView) view.findViewById(R.id.text);
            vh.start = (CheckBox) view.findViewById(R.id.start);
            vh.see = (SeekBar) view.findViewById(R.id.seek);
            vh.time1 = (TextView) view.findViewById(R.id.texttime1);
            vh.time2 = (TextView) view.findViewById(R.id.texttime2);

            view.setTag(vh);

        } else {
            view = convertView;
            vh = (ViewHolder) view.getTag();
        }
        vh.text.setText(list.get(position).getName());
        vh.start.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                for (int i = 0; i < list.size(); i++) {
                    if (i != position) {
                        list.get(i).setCheck(false);
                        muse.onstop();
                        notifyDataSetChanged();

                    }
                }
                boolean check = list.get(position).isCheck();
                if (check) {
                    // 播放
                    muse.onplay(position);
                    System.out.println(position);
                    int long1 = Singleton.long1;
                    System.out.println(long1 + "=========");
                    vh.see.setMax(long1);
                    muse.seek(vh.see, vh.time1, vh.time2);

                } else {
                    muse.onstop();
                    MainActivity.cancelTime();

                }

            }
        });
        vh.start.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(CompoundButton buttonView,
                    boolean isChecked) {

                list.get(position).setCheck(isChecked);

            }
        });
        vh.start.setChecked(list.get(position).isCheck());
        // 判断状态
        if (list.get(position).isCheck()) {

            vh.see.setVisibility(View.VISIBLE);
            vh.time1.setVisibility(View.VISIBLE);
            vh.time2.setVisibility(View.VISIBLE);

        } else {
            vh.see.setVisibility(View.GONE);
            vh.time1.setVisibility(View.GONE);
            vh.time2.setVisibility(View.GONE);
        }

        vh.see.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                if (Singleton.play != null) {
                    Singleton.play.seekTo(vh.see.getProgress());
                    muse.seek(vh.see, vh.time1, vh.time2);
                }

            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                MainActivity.cancelTime();

            }

            @Override
            public void onProgressChanged(SeekBar seekBar, int progress,
                    boolean fromUser) {
                // TODO Auto-generated method stub

            }
        });

        return view;
    }

    public class ViewHolder {
        TextView text;
        public CheckBox start;
        SeekBar see;
        TextView time1, time2;
    }

    public interface useMetod {

        void onplay(int position);

        void onstop();

        void onCheck(CheckBox start);

        void seek(SeekBar seek, TextView text, TextView text1);

    }

    public void setIuse(useMetod usemetod) {
        muse = usemetod;

    }

}